CN201236313Y - Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone - Google Patents
Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone Download PDFInfo
- Publication number
- CN201236313Y CN201236313Y CNU2008200259798U CN200820025979U CN201236313Y CN 201236313 Y CN201236313 Y CN 201236313Y CN U2008200259798 U CNU2008200259798 U CN U2008200259798U CN 200820025979 U CN200820025979 U CN 200820025979U CN 201236313 Y CN201236313 Y CN 201236313Y
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- bridge
- barrier
- guardrail
- column
- fence
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Abstract
The utility model relates to a crash barrier of a bridge for vehicles with dangerous goods passing through a water source protection zone, which adopts double-layer protection and comprises an outer barrier and an inner barrier. The outer barrier is a combination-type barrier and comprises an upper part and a lower part; the lower part adopts an SS-grade reinforced type reinforced concrete wall-type barrier; the upper part adopts a metal beam-column type barrier which comprises upright columns A and crossbeams A; and the lower SS-grade reinforced type reinforced concrete wall-type barrier is connected with bridge decks through embedded steel bars. The inner barrier adopts the SS-grade three-wave corrugated barrier and comprises upright columns B, middle crossbeams B and crossbeams B; and the upright columns B are embedded in the bridge decks. The utility model achieves the design goals of collision prevention, rollover prevention, pollution prevention, and the like through the double-layer protection of the outer barrier and the inner barrier to furthest reduce the risks of the pollution of water source caused by the leakage of dangerous goods in the passing vehicles, so the security of water quality is guaranteed. Meanwhile, the utility model has simple construction process without special equipment and is especially suitable for bridges for vehicles with dangerous goods passing through water sources.
Description
Technical field
The utility model relates to a kind of bridge protective guard, especially a kind of Collison fence for bridge that is used for the current dangerous material vehicle in water head site urban conservation area.
Background technology
Through the bridge of water head site urban conservation area, often there is the oversize vehicle of poisonous, the harmful dangerous material of transportation current.In a single day traffic accident takes place in these vehicles on bridge, leak the serious environmental risk of polluted source or water head site with regard to dangerous product.For protect the water source () do not polluted by poisonous, hazardous substances; in the time of must guaranteeing that traffic accident takes place contingency; the dangerous material vehicle is unlikely to be routed up or runs off outside the bridge; guarantee that poisonous, hazardous substances only is scattered or leaks on bridge floor; and can directly not be scattered or leak on the water head site, be convenient to first aid, administrative staff and adopt an effective measure and reclaim or handle.But up to now, Bridge guardrail both domestic and external does not also possess and prevents that effectively the large-scale dangerous material vehicle of running at high speed from routing up or running off the outer function of bridge, this give the residing water source of bridge () protection brings very big risk.
Summary of the invention
The utility model provides a kind of and is built on the rock for overcoming above-mentioned the deficiencies in the prior art, can effectively avoid vehicle to rout up or run off outside the bridge, to the water source () play the multifunction anti-collision guardrail of effective protective effect.Simultaneously, this Multifunction anticollision barrier can produce buffering energy-absorbing function when vehicle and guardrail bump, have good guidance capability, and can reduce the infringement of collision to vehicle and occupant effectively.
The purpose of this utility model is to adopt following technical proposals to realize: a kind of Collison fence for bridge that is used for the current dangerous material vehicle in water head site urban conservation area, adopt double-deck protection, comprise outer guardrail and internal layer guardrail, outer combined guardrail, two parts about comprising of adopting, the bottom is a wall fence, top is the post and beam guardrail, and the post and beam guardrail comprises column A and crossbeam A, and wall fence is connected with bridge deck, column A is arranged at the top of wall fence, and crossbeam A is arranged on the leading flank of column A; The internal layer guardrail is SS level three wave-wave ellbeam guardrails, and it comprises column B, middle cross beam and crossbeam B, and column B is embedded in the bridge deck, and middle cross beam is arranged on the column B by connector, and crossbeam B is arranged at the upper end of column B.
Described wall fence is a SS level reinforced steel tendon concrete structure.
Described SS level reinforced steel reinforced concrete wall fence is connected with bridge deck by embedded bar.
Described post and beam guardrail is made by metal material.
The utility model is by the bilayer protection of inside and outside two-layer guardrail, especially adopt SS level reinforced steel reinforced concrete wall fence by the outer combined guardrail bottom of strengthening, the beams of metal post fence is adopted on top, purposes of design such as reaching crashproof, anti-and turn over, anti-pollution, reduce to greatest extent that the traffick dangerous material leak and polluted source () risk, guarantee water quality safety.The utility model construction technology is simple simultaneously, does not need special installation.Be specially adapted to the bridge of the current dangerous material vehicle in water head site urban conservation area, the general technology workman can grasp construction technology through training.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model;
Fig. 2 is an outer guardrail schematic diagram of the present utility model;
Fig. 3 is an outer guardrail superstructure left view of the present utility model;
Fig. 4 is an outer guardrail superstructure elevation of the present utility model;
Fig. 5 is an outer guardrail superstructure vertical view of the present utility model;
Fig. 6 is an internal layer guardrail schematic diagram of the present utility model.
Among the figure, 1, outer combined guardrail, 2, internal layer three wave-wave ellbeam guardrails, 3, column A, 4, SS level reinforced steel reinforced concrete wall fence, 5, crossbeam A, 6, bridge deck, 7, flange, 8, stone bolt, 9, stiffener, 10, channel-section steel, 11, bolt, 12, column B, 13, connector, 14, middle cross beam, 15, crossbeam B.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1 to Fig. 6, guardrail comprises outer combined guardrail 1 and internal layer three wave-wave ellbeam guardrails 2, outer combined guardrail 1 comprises the SS level reinforced steel reinforced concrete wall fence 4 of bottom, the column A3 and the crossbeam A5 of upper metal post and beam guardrail, SS level reinforced steel reinforced concrete wall fence 4 is connected with bridge deck 6 by embedded bar, column A3 is arranged at the top of reinforced steel reinforced concrete wall fence 4, and crossbeam A5 is arranged on the leading flank of column A3; Internal layer guardrail 2 comprises column B12, middle cross beam 14 and crossbeam B15, and column B12 is embedded in the bridge deck 6, and middle cross beam 14 is arranged on the column B12 by connector 13, and crossbeam B15 is arranged at the upper end of column B12.
Outer guardrail 1 bottom 4 is a SS level reinforced steel reinforced concrete wall fence.
Outer guardrail 1 top is the beams of metal post fence, its rectangle column A3 is connected with stone bolt 8 by flange 7 with bottom SS level reinforced steel reinforced concrete wall fence 4, be connected by stiffener 9 between column A3 and the flange 7, column A3 is connected with bolt 11 by channel-section steel 10 with rectangle crossbeam A5.
Internal layer guardrail 2 all members all adopt metal construction, circular abutment B12 comprises two parts up and down, connects by bolt between two parts, and middle cross beam 14 is three wave-wave ellbeams, column B12 is connected by connector 13 with three wave-wave shape middle cross beams 14, and column B12 is connected by bolt with circular crossbeam B15.Circular abutment B12 the first half curves inwardly, and top adds circular crossbeam and further prevents vehicle turnover.
According to momentum theorem, if particle the utmost point in the short time speed sharply change, and its position almost remains unchanged, then this particle just is subjected to a collision.Suppose to participate in the object mass conservation of collision during the collision, then by Newton's law the time interval is carried out integration, the variation of momentum equals momentum, promptly
The momentum of the particle before the I=mvs collision
I′-I＝P
In whole collision process, F is a variable, is the function of time, thinks that be a definite value but can be similar in each time interval △ t, then has
mv
n-mv
n-1＝F
nΔt n＝1，2，3，……
Based on above principle, as shown in Figure 1, anticollision barrier of the present utility model, it comprises two-layer guardrail.Internal layer guardrail shown in Figure 6 reduces the injury to the occupant as far as possible based on tolerant design concept when accident takes place, adopt SS level three wave-wave ellbeam guardrails.In vehicle and rail collision process, the waveform crossbeam can be crossed the effect of playing buffering, earlier with the lower beam collision, then collide with upper beam again, thereby prolonged collision time, impact force when having reduced vehicle collision prevents to get out guardrail in the dolly collision process to driver and crew's infringement simultaneously.Upper beam can prevent effectively that vehicle from going out and even being turned to outside the guardrail, and for oversize vehicle, the slight accident top rail of only can swiping can not cause damage to lower transverse beam, only need replace with crossbeam during replacing, thereby reduce maintenance cost.
Outer guardrail shown in Figure 2 adopts combined guardrail (height overall 1.6m): the highest (SS) reinforced steel reinforced concrete wall fence (high 1.1m) of anti-collision level is adopted in outer guardrail bottom, guardrail dependence high strength, high rigidity force the vehicle hard collision, climbing releases energy, the inside top projection can prevent that vehicle from running off outside the bridge, and the reinforced concrete wall of bottom can effectively be tackled the vehicle leakage in bridge floor simultaneously; Beams of metal post fence (high 0.5m) is adopted on outer guardrail top, is mainly used in to prevent that large-scale dangerous material vehicle from going out outside the bridge.
Vehicle at first collides with internal layer guardrail 2 in the utility model, consume a certain amount of kinetic energy, induce its travel direction, most of vehicle will be blocked in internal layer guardrail 2, the oversize vehicle of internal layer guardrail 2 is gone out or routed up to minority, will hard collision, the outer guardrail 1 of climbing releases energy, outer guardrail 1 upper metal post and beam guardrail is mainly used in and oversize vehicle is carried out secondary blocks, and prevents that the oversize vehicle that runs off internal layer guardrail 2 from routing up outside the bridge.
Claims (4)
1. Collison fence for bridge that is used for the current dangerous material vehicle in water head site urban conservation area, adopt double-deck protection, it is characterized in that: comprise outer guardrail and internal layer guardrail, outer combined guardrail, two parts about comprising of adopting, the bottom is a wall fence, top is the post and beam guardrail, and the post and beam guardrail comprises column A and crossbeam A, and wall fence is connected with bridge deck, column A is arranged at the top of wall fence, and crossbeam A is arranged on the leading flank of column A; The internal layer guardrail is SS level three wave-wave ellbeam guardrails, and it comprises column B, middle cross beam and crossbeam B, and column B is embedded in the bridge deck, and middle cross beam is arranged on the column B by connector, and crossbeam B is arranged at the upper end of column B.
2. the Collison fence for bridge that is used for water head site urban conservation area dangerous material Vehicle protector according to claim 1 is characterized in that: described wall fence is a SS level reinforced steel tendon concrete structure.
3. the Collison fence for bridge that is used for water head site urban conservation area dangerous material Vehicle protector according to claim 2 is characterized in that: described SS level reinforced steel reinforced concrete wall fence is connected with bridge deck by embedded bar.
4. the Collison fence for bridge that is used for water head site urban conservation area dangerous material Vehicle protector according to claim 1 is characterized in that: described post and beam guardrail is made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200259798U CN201236313Y (en) | 2008-07-23 | 2008-07-23 | Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200259798U CN201236313Y (en) | 2008-07-23 | 2008-07-23 | Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236313Y true CN201236313Y (en) | 2009-05-13 |
Family
ID=40649050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200259798U Expired - Fee Related CN201236313Y (en) | 2008-07-23 | 2008-07-23 | Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236313Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638392A (en) * | 2016-10-13 | 2017-05-10 | 交通运输部公路科学研究所 | Concrete guardrail unit, preparation method thereof and concrete guardrail |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
| CN111560885A (en) * | 2020-06-17 | 2020-08-21 | 中交第一公路勘察设计研究院有限公司 | Integrated six-stage three-beam metal beam column type guardrail for central separation zone of highway |
-
2008
- 2008-07-23 CN CNU2008200259798U patent/CN201236313Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638392A (en) * | 2016-10-13 | 2017-05-10 | 交通运输部公路科学研究所 | Concrete guardrail unit, preparation method thereof and concrete guardrail |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
| CN111560885A (en) * | 2020-06-17 | 2020-08-21 | 中交第一公路勘察设计研究院有限公司 | Integrated six-stage three-beam metal beam column type guardrail for central separation zone of highway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120723 |